Contact us
Choose a category below so we can get back to you as quickly as possible.
樓上的,∠CAD=∠DAB,就得出CD=BD?證據不足啊 等角對等邊是對於同一個三角形,或兩個全等形而言的哦.
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.